JP2561027Y2 - Lifting and dumping equipment for work carrier - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loading / unloading and dumping device for a work carrier capable of lifting and lowering a loading platform in a horizontal posture and dumping the same.

[0002]

2. Description of the Related Art Conventionally, there is a work carrier in which a carrier can be raised and lowered by a support cylinder and a hydraulic cylinder on both sides crossed in an X-shape, as disclosed in JP-A-60-4440. It is known to be able to dump a bed that can be raised and lowered.

[0003]

However, in the apparatus disclosed in the above-mentioned conventional example, dumping is performed while rotating the carrier along with the support link with the front of one of the X-shaped support links being folded as a fulcrum. As a result, the dumping action of the carrier becomes unstable and the load on the hydraulic cylinder also increases, making it impossible to dump effectively.When dumping, the end of the other link of the support link is Since it is necessary to operate on both rails side so as to come off, there is a problem that the operation is troublesome, time-consuming and troublesome.

[0004]

SUMMARY OF THE INVENTION The present invention has been devised in order to solve such a problem and to make it possible to carry out dumping effectively by a simple switching operation so that it can be suitably implemented.
For this reason, the carrier has a front frame pivotally connected at one upper part of the support link and a rear end guided at the other upper part of the support link by a rail so as to be slidably connected,
The front of the underframe is divided into a loading frame that pivots the front end side, the rails are fixed to the rear of the underframe, and the rails are fixed to the fuselage side. The lower part of the support link is pivotally connected to the front part of the fuselage, and the other end of the hydraulic cylinder extending from the vicinity of the intersection of the support link is located behind the load frame. A locking member which can be linked and linked to the end to lock the fuselage-side locking piece and the rear end of the underframe, and to switch and lock the underframe and the rear end of the loading frame respectively. The switching operation is enabled by a lever.

[0005]

Therefore, if the loading frame is locked to the underframe by the locking member by operating the lever, the loading frame and the underframe can be moved up and down in a horizontal posture by the operation of the hydraulic cylinder. Various operations can be performed in the same manner as before, and when the locking member is switched by the lever to lock the underframe to the locking piece on the body side, the hydraulic cylinder is operated to tilt the loading frame forward. As a result, it becomes possible to dump the soil and the like on the cargo carrier.

[0006]

FIG. 2 is a side view of a work carrier, in which both crawlers 8 mounted on a truck frame 7 are provided on both lower sides of the fuselage, and an engine 10 and an engine 10 are mounted on a support frame 9 at the rear of the fuselage. The vehicle is equipped with a steering column 11 and the like, and is configured by disposing a carrier 3 on the front side of the fuselage. The carrier 3 is mounted with its front portion above a support frame 12 extending from the front portions of both track frames 7. A support frame which is divided into a frame 3a which can be placed thereon and a load frame 3b which can be joined above the frame 3a and on which a load can be placed, and which is vertically suspended from a front end of the load frame 3b. 13 are pivotally connected to both support pieces 14 on the front end side of the underframe 3a via pins 15, so that the loading frame base 3b can rotate around the center of the pins 15.

[0007] On both lower sides of the underframe 3a, two support links 1 which intersect two links 1a and 1b in an X-shape and pivotally connect the intersection to a support shaft 16 are interposed.
The lower ends of the front ends of the links 1a and 1b are
Part, the upper part of which is a support piece 1 at the front of the underframe 3a.
7 via pins 18a, 18b and both links 1
The rollers 19a and 19b, which are mounted on the rear ends of the a and 1b,
An upper roller 19a is slidably fitted on a rail 20 fixed on both sides of a rear portion of the underframe 3a, and a lower roller 19b is slidably fitted on a rail 21 fixed on an upper part of the track frame 7, respectively. 16 is rotatably connected to the base end of the hydraulic cylinder 2 to a support piece 22 protruding from an intermediate portion, and a support piece 23 protruded inward from the rear end of the loading frame 3b. The distal end of the cylinder 2 is rotatably connected.

Further, a support frame plate 9a on which the rear portion of the underframe 3a, which is placed above the support frame 12 and is horizontal, can be mounted so as to protrude forward from the front portion of the support frame 9. At the same time, a locking piece 4 having a lateral hole 4a protrudes in front of a front portion of the support frame 9, which is a lateral side portion of the body, and the locking piece 4 is provided at a rear end of the underframe 3a. And two parallel locking pieces 24, 24 each having a horizontal hole 24a are fixedly provided, and the lower side of the rear end portion of the loading frame base 3b is closely approached to one of the locking pieces 24. A locking piece 25 having a hole 25a is vertically provided, and a horizontal pin 26 is provided at an intermediate portion of the rod-shaped locking member 5 inserted into each of the horizontal holes 4a, 24a, 24a, 25a.
And the lower end of the lever 6 fitted so as to be able to pass through the rear part of the loading frame base 3b is pivotally supported via a fulcrum shaft 27 on the rear end side of the base frame 3a. When the pin 26 is inserted into the long groove 28 formed in the portion and the lever 6 is turned to one side, the locking member 5
The engagement member 5 is configured to fit over the locking pieces 24, 24, and 4 while being fitted over the locking pieces 24, 25 and rotated to the other side.

Therefore, as shown in FIG. 4, the lever 6 is turned to one side, and the loading frame 3b is
a, and the hydraulic cylinder 2 is contracted, and as shown in FIGS. 2 and 3, the loading frame 3b and the underframe 3a can be moved down to set a state in which the cargo can be transported. When the cylinder 2 is extended, both support links 1 are in an upright state, and the loading frame base 3b and the underframe 3a are raised in a horizontal posture as shown by the imaginary line A in FIG. 2 and as shown in FIG. 9 can be carried out on the carrier 3 in the same manner as in the prior art, and when the carrier 3 is moved down as shown in FIGS. 2 and 3, as shown in FIG. When the lever 6 is rotated to the other side and the locking member 5 is fitted to the locking pieces 24, 24 and 4, only the cargo frame base 3b is locked to the machine body side, and the hydraulic cylinder 2 is extended to operate. As shown in FIG. Only load frame base 3b supposed to be capable of tilting forward, it is possible dumping gravel or the like on the load frame base 3b.

[0010]

As described above, according to the present invention, when the loading frame 3b is locked to the underframe 3a by the locking member 5 by the operation of the lever 6, the hydraulic cylinder 2 operates to load the loading frame 3b and the underframe 3a.
Can be raised and lowered in a horizontal posture, and various operations can be performed on the carrier 3 in the same manner as before.
When the locking member 5 is switched by the lever 6 to lock the underframe 3a to the locking piece 4 on the machine body side, the hydraulic cylinder 2 operates to allow the loading frame base 3b to be tilted forward. The soil and the like on the frame base 3b can be effectively dumped, and the entire loading platform 3 can be effectively raised and lowered in a horizontal posture by a simple switching operation by operating the lever 6, or only the loading frame 3b can be effectively tilted. This makes it possible to perform a stable and stable dumping operation, and has a feature that it can be suitably implemented with a simple structure.

[Brief description of the drawings]

FIG. 1 is a side view showing a main part of an embodiment of the present invention.

FIG. 2 is a side view showing the work carrier.

FIG. 3 is an enlarged side view showing a part of FIG. 2;

FIG. 4 is a rear view showing the line IV-IV of FIG. 3;

FIG. 5 is a perspective view showing both support links.

FIG. 6 is an exploded side view of FIG. 3;

FIG. 7 is an exploded rear view of FIG. 4;

FIG. 8 is a side view showing the operation state of FIG. 3;

FIG. 9 is a rear view showing the operation state of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support link 2 Hydraulic cylinder 3 Loading platform 3a Underframe 3b Loading frame 4 Locking piece 5 Locking member 6 Lever 20 Rail 21 Rail

Claims (1)

(57) [Scope of request for utility model registration] 1. A working transport vehicle by supporting link 1 and the hydraulic cylinder 2 on both sides crossed in X shape and configure the vertically movable loading platform 3, the loading platform 3, while the upper portion of the support link 1 The front end is pivoted and the rear end is
Guided by the rail 20 at the other upper part of the holding link 1
And underframe 3a slidably interlocking, co Dividing into the load frame base 3b of pivotal joints the front end to the front of the underframe 3a, said platform
The rail 20 is provided at the rear of the frame 3a, and the rail 21 is provided at the body side.
And fix one lower part of the support link 1 forward.
The support link is slidable on the rail 21 on the body side.
1 is pivotally connected to the front of the fuselage, and the other end of the hydraulic cylinder 2 extending from the vicinity of the intersection of the support links 1 is interlocked with the rear end of the loading frame 3b to be linked to the body. Locking piece 4
And a rear end of the underframe 3a and a locking member 5 capable of switching and locking the rear end of the underframe 3a and the rear end of the loading frame 3b by a lever 6 so as to be switchable. A loading / unloading and dumping device for a work carrier .